taler-android

Android apps for GNU Taler (wallet, PoS, cashier)
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RefundManager.kt (1923B)

      1 /*
      2  * This file is part of GNU Taler
      3  * (C) 2020 Taler Systems S.A.
      4  *
      5  * GNU Taler is free software; you can redistribute it and/or modify it under the
      6  * terms of the GNU General Public License as published by the Free Software
      7  * Foundation; either version 3, or (at your option) any later version.
      8  *
      9  * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
     10  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11  * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     12  *
     13  * You should have received a copy of the GNU General Public License along with
     14  * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15  */
     16 
     17 package net.taler.wallet.refund
     18 
     19 import androidx.lifecycle.LiveData
     20 import androidx.lifecycle.MutableLiveData
     21 import kotlinx.coroutines.CoroutineScope
     22 import kotlinx.coroutines.launch
     23 import kotlinx.serialization.Serializable
     24 import net.taler.wallet.backend.TalerErrorInfo
     25 import net.taler.wallet.backend.WalletBackendApi
     26 
     27 sealed class RefundStatus {
     28     data class Error(val error: TalerErrorInfo) : RefundStatus()
     29     data class Success(val response: StartRefundQueryForUriResponse) : RefundStatus()
     30 }
     31 
     32 @Serializable
     33 data class StartRefundQueryForUriResponse(
     34     val transactionId: String,
     35 )
     36 
     37 class RefundManager(
     38     private val api: WalletBackendApi,
     39     private val scope: CoroutineScope
     40 ) {
     41 
     42     fun refund(refundUri: String): LiveData<RefundStatus> {
     43         val liveData = MutableLiveData<RefundStatus>()
     44         scope.launch {
     45             api.request("startRefundQueryForUri", StartRefundQueryForUriResponse.serializer()) {
     46                 put("talerRefundUri", refundUri)
     47             }.onError {
     48                 liveData.postValue(RefundStatus.Error(it))
     49             }.onSuccess {
     50                 liveData.postValue(RefundStatus.Success(it))
     51             }
     52         }
     53         return liveData
     54     }
     55 
     56 }